Apart from the long queue, I didn't buy insurance at the store and had a deposit of 1100 euros held.

The vehicle provided was a hybrid although the hybrid option was not explained so did not use. The car upgrade was very satisfactory

Excellent

Like how you leave the rental company knowing you've got a full refund

Lots of hidden fees (gas, early drop off, large deposit, etc) terrible customer service on day of pick up. The service rep made us so angry we wanted to cancel but then were informed we couldn't without talking to the third party booking service. Not in Bilbao airport and very difficult to locate for return. Only positive thing I can say is the car was in good condition. Still waiting for deposit, though it's only been a few days. Wish I would have read more reviews prior to reserving. Won't book with them again.

The customer service was terrible. Upon arrive we spent 2.5 hours waiting to be served. When our number was called, after waiting so long, it was said in spanish only, when most costumers in the office were International. We relied on the screen that only made a chime when the queue adjusted. When I saw it was my turn and left my seat in the 15 seconds it took me to walk to the counter she already called 2 more numbers. We all arrived at the same time and she serviced the last number called rather than the two other people waiting for over an hour already. Everyone in the service area seemed to be upset about something from the return process, to an unassisted elderly man who was unclear about the car collection process. The service ticket system was not very obvious to most waiting - some waiting for some time before realizing that they had to take a number. Additionally, we walked away with a final bill of 240. When our quoted rate was 136. We had no optional add-ons, returned the car with a full tank and on time. The car return process was also not clear that you had to get out of the car line up and wait in line outside of the office door - where there was only one person handling the returns for all of the people trying to get to their morning flights. There was a queue of at least 10-15 people. Again, most costumers were clearly distressed and confused.